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Appendix 3: Troubleshooting
Fault description
There is no power on the RAK-STAR.
No devices are showing up online.
Devices intermittently go offline and online. Check the system size, if there are more tha
Data gets to a certain point but does not
go further.
RAK-STAR
Solution
Remove all power jumpers on every leg of
the RAK-STAR apart from the RAK-LINK leg
If the fault clears, introduce one power
jumper at a time until the red light on the
RAK-STAR goes off. Investigate the legs for
short circuits.
Put all data switches in the off position,
apart from the RAK-LINK, and verify the
RAK-LINK is online.
In sequence, introduce one data switch at a
time while verifying the devices are coming
online, and isolate and investigate the
wiring on any legs that cause devices to go
offline.
two fully populated RAK-STAR units or the
total cable length has exceeded 1.5km, the
system will require partitioning with the
WA-NEX.
Check the voltage on the wired network, it
should be between 13-15VDC, if the
voltage is too low test the RAK-LINK power
supply in isolation.
Check the 'STAR' terminations on the
surrounding legs, for example: if the data
only reaches leg 6, investigate leg 5 and
leg 7.
Manual Version 2.0.0
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